Warming drawer



FIG. 1 is a front view of a warming drawer showing a first embodiment of our ornamental design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a front view of a warming drawer showing a second embodiment of our ornamental design; and,

FIG. 4 is a perspective view thereof.

Where included, broken lines showing environment or structure are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a warming drawer, as shown and described. 